(19)

(11)

EP 2 920 685 A1

(12)

(43) Date of publication: 23.09.2015 Bulletin 2015/39 (21) Application number: 12888475.6 (22) Date of filing: 20.11.2012

(51) International Patent Classification (IPC):  G06F 9/44(2006.01) (86) International application number: PCT/US2012/066126 (87) International publication number: WO 2014/077856 (22.05.2014 Gazette 2014/21)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 16.11.2012 US 201213679495 (71) Applicant: Level 3 Communications, LLC Broomfield, CO 80021 (US)	(72) Inventors: RUMER, Eric Alden Erie Colorado 80516 (US) RUMER, Ken Arvada Colorado 80004 (US) (74) Representative: Ford, Esther Mary  Marks & Clerk LLP 62-68 Hills Road Cambridge CB2 1LA Cambridge CB2 1LA (GB)